參數(shù)資料
型號: HEF4520BT
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Dual binary counter
封裝: HEF4520BP<SOT38-4 (DIP16)|<<http://www.nxp.com/packages/SOT38-4.html<1<Always Pb-free,;HEF4520BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week
文件頁數(shù): 7/13頁
文件大小: 130K
代理商: HEF4520BT
HEF4520B_5
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 10 December 2009
7 of 13
NXP Semiconductors
HEF4520B
Dual binary counter
12. Waveforms
a. nCP0 and nCP1 set-up times, propagation delays and output transition times
b. nMR recovery time, minimum nCP0, nCP1, and nMR pulse widths and maximum frequency
Measurement points are given in
Table 9
.
The logic levels V
OH
and V
OL
are typical output voltage levels that occur with the output load.
Waveforms showing measurements for switching times
Fig 5.
001aae702
V
I
V
I
V
I
V
M
V
M
V
M
V
M
t
t
t
su
t
su
t
t
t
PHL
t
PLH
90 %
10 %
t
PHL
V
OH
nCP0 input
nCP1 input
nMR input
nQn output
0 V
0 V
0 V
0 V
V
OL
001aae701
nCP1 input
(nCP0 = LOW)
nCP0 input
(nCP1 = HIGH)
nMR input
V
M
V
I
0 V
V
I
0 V
V
I
0 V
t
W
1/f
max
V
M
t
W
V
M
t
W
t
rec
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